Observation information
- date-obs: 2024-09-22
- time-obs: 08:27:49.570300000
- date-end: 2024-09-22
- time-end: 10:54:44.563500000
- obs_id: A13_037T01_9000006436
- exposure: 8601.01515442
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006436_48597cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48597cztM0_level2_quad_clean.evt
|
Size (bytes) | 568,284,480 | 136,883,520 |
Size | 542.0 MB
| 130.5 MB
|
Events in quadrant A | 8,481,717 | 896,511 |
Events in quadrant B | 4,103,381 | 935,770 |
Events in quadrant C | 3,699,869 | 895,221 |
Events in quadrant D | 4,067,314 | 805,305 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32006 | 0 |
B | 0 | 18386 | 0 |
C | 0 | 17878 | 0 |
D | 0 | 18949 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 176 | 0 |
B | 0 | 176 | 0 |
C | 0 | 176 | 0 |
D | 0 | 176 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8815 | 123 | 1.395349% |
B | 8815 | 39 | 0.442428% |
C | 8815 | 5 | 0.056721% |
D | 8816 | 92 | 1.043557% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 8815 | 8815 | 2 | 2 | 0.02% | 0.02% | |
B | 8815 | 8815 | 3 | 3 | 0.03% | 0.03% | |
C | 8815 | 8815 | 1 | 1 | 0.01% | 0.01% | |
D | 8816 | 8816 | 61 | 61 | 0.69% | 0.69% | |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 4781899 | 23745.75 | 952 | 929 | 201.3 |
A | 13 | 254 | 17326 | 81.44 | 952 | 929 | 201.3 |
A | 13 | 248 | 12245 | 56.2 | 952 | 929 | 201.3 |
B | 12 | 16 | 229704 | 1208.28 | 954 | 921 | 189.3 |
B | 0 | 197 | 57962 | 301.25 | 954 | 921 | 189.3 |
B | 12 | 111 | 25105 | 127.72 | 954 | 921 | 189.3 |
C | 12 | 250 | 20636 | 89.31 | 936 | 939 | 220.5 |
C | 12 | 249 | 18420 | 79.26 | 936 | 939 | 220.5 |
C | 14 | 67 | 7469 | 29.61 | 936 | 939 | 220.5 |
D | 13 | 171 | 215141 | 923.16 | 925 | 893 | 232.1 |
D | 2 | 249 | 198813 | 852.81 | 925 | 893 | 232.1 |
D | 5 | 171 | 83850 | 357.45 | 925 | 893 | 232.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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Quadrant B |
Quadrant D |
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Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
|
|
Quadrant-wise count rates
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
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|
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
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Housekeeping plots
Parameter |
Plot |
CZT HV Monitor | |
D_VDD | |
Temperature 1 | |
Veto HV Monitor | |
Veto LLD | |
Alpha Counter | |
_CPM_Rate | |
CZT Counter | |
+2.5 Volts monitor | |
+5 Volts monitor | |
_ROLL_ROT | |
_Roll_DEC | |
_Roll_RA | |
Veto Counter | |